From: "Rafael García" <rafael AT geninfor DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: RE: negative sbrk(0)
Date: Tue, 26 Sep 2000 19:57:07 +0200
Organization: Telefonica Transmision de Datos
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References: <8qns3d$6g4$1 AT diana DOT bcn DOT ttd DOT net> <7263-Tue26Sep2000085518+0300-eliz AT is DOT elta DOT co DOT il> <8qprpe$l72$1 AT diana DOT bcn DOT ttd DOT net> <969973140 DOT 340672 AT shelley DOT paradise DOT net DOT nz>
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To: djgpp AT delorie DOT com
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Edmund Horner <ejrh AT paradise DOT net DOT nz> escribió en el mensaje de noticias
969973140 DOT 340672 AT shelley DOT paradise DOT net DOT nz...
> I understand that even if you allocate a block bigger than you have free
> memory, the DPMI service won't actually start the virtual memory up until
> you actually _use_ it.

O.K., but this does not make a solution. I have no chance to decide if using
RAM o disk.

> > Perhaps I must try malloc(1.5*filelength(f)) to decide if it is good
idea
> to
> > load entire file in ram, but I thougth it would be better technique to
> watch
> > available before. I think it is possible a long delay for virtual
> allocation
> > if I ask for 20 Mb in a 2Mb ram machine, and in this environment I would
> > prefer to let data on disk and read it myself as necessary, saving real
> ram
> > for other more important purposes.